When I look at reviews on Amazon, for example, I often see people lamenting that they cannot give a product "zero stars." I was recently reflecting on Likert-scale questions. I think, when translating the options (often Strongly Disagree, Disagree, Neutral, Agree, Strongly Agree) to a numerical scale, the scale should be 0, 1, 2, 3, 4 rather than 1, 2, 3, 4, 5. This way a "Strongly Disagree" becomes zero points.
As my brilliant idea catches on, it may necessitate that, when reporting results, you also provide the translation between the words and the scale. Or, at a minimum, report that the scale is 0-based.
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